WooCommerce Webhooks – WPQuickies

In this lunchtime #WPQuickies, I talk about how to set up and use webhooks ↪ with WooCommerce.

WooCommerce Webhooks – WPQuickies webinar

What Are Webhooks And Why Use Them?

Webhooks allow disparate applications to share information.

There are generally two ways for apps to communicate, polling and webhooks.

Polling is where you ask an app if it has any information to offer, similar to asking your friends if they would like another round of drinks and which ones, in a pub.

Webhooks simply give information to an app on each occurrence, so in the analogy above you simply bring a round of drink to your friends when it’s your turn, no questions asked.

Webhooks allow you to automate processes and automation ultimately saves time and money, when implemented properly, so that’s a good thing to do!

WooCommerce Webhooks

Let’s have a look at what we can do with WooCommerce webhooks.

Webhooks were introduced in WooCommerce 2.2 and can trigger events each time you add, edit or delete orders, products, coupons or customers.

What makes it even more powerful is that you can trigger a webhook on an action 

e.g. Create a webhook to be used every time a product is added to the shopping cart, using the action woocommerce_add_to_cartYou can find a complete list of WooCommerce event actions here: https://woocommerce.github.io/code-reference/hooks/hooks.html

WooCommerce Webhook Add To Cart

Let’s set up a webhook to fire when somebody adds something to the cart.

We can use a site called https://webhook.site/ to test the hook and see what data it transmits.

I added the test URL supplied from the webhook.site and the secret was filled in automagically when I saved the webhook.

Let’s test.

Here’s the full response we got from the webhook firing.

We’re only really interested about the data being given to us – that’s the raw content section

Here we can see that the payload data has the action hook name and the argument is the cart item key.

You could theoretically get all the item details using the WC_Cart class and the get_cart_item() method, or using the REST API.

https://stackoverflow.com/questions/55673045/what-is-the-arg-field-value-that-is-sent-on-woocommerce-add-to-cart-webhook

WooCommerce + Webhook + Zapier

The real power comes when you start to automate with Zapier.

Catching webhooks is a premium service so you’ll have to sign up for that before you can use custom hooks.

Then you can set your zap to do all sorts of stuff – send a notification to a Slack channel, add a person onto a CRM etc.

So, you don’t have to build your own service to catch a webhook, you could easily use zapier as the middleware to funnel data to the thousands of integrations it offers.

Here’s a link to more information on Zapier webhooks https://zapier.com/help/create/code-webhooks/trigger-zaps-from-webhooks

Of course, Zapier has its own WooCommerce “recipes” so you don’t have to do through all the hoops of using a custom webhook and it’s not just WooCommerce that offers webhooks, many plugins and other services allow you to trigger a webhook.

I use Active Campaign as my CRM and it allows you to trigger webhooks for heaps of different events.

I thought it would be helpful seeing webhooks in action and maybe that will spur a thought or two about how you can automate processes in your business workflow.

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Wil

Wil is a dad, consultant, developer, conference organiser, speaker and business mentor. He co-organizes the WordPress Sydney meetup group and has been on the organising committee for WordCamp Sydney since 2014. He speaks at many special events and contributes to the WordPress open source project. His likes are chillies, craft beer and electrogravitics.

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